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SR 520 Pontoon Construction Project - Cycle 1 Inspection Videos

After SR 520 bridge pontoons are constructed, contractors Kiewit-General and Kiewit/General/Manson, A Joint Venture and WSDOT each conduct a thorough inspection of the pontoons.

A critical component of the SR 520 bridge construction process is a thorough inspection of each new pontoon. Because the pontoons are built in a dry casting facility, WSDOT cannot get a complete analysis of what's underneath the pontoons until they are floated out.

The majority of each bridge pontoon is underwater, so we hire specially trained divers to systematically scan every square inch of the pontoon’s “undercarriage” and side walls. The divers use video and radio equipment to transmit live footage of the pontoon to an experienced inspector above the surface, and stay in constant communication to ensure any and all areas of potential concern are discovered and marked so they can be addressed as needed.

Video viewing instructions

To view them, right click on each link and select "Save Target As..." or "Save Link As..." Please note that these are large files, sometimes more than 2 GB (2,000 MB) in file size, and may take more than an hour to download even on a high-speed connection. 

The videos linked below are raw footage from both contractor and WSDOT inspectors. They are unedited and occassionally contain strong language. 

Volume

Pontoon 

Files

1

T, U

File 1  (avi 561 mb)
File 2  (avi 1.06 gb)
File 3  (avi 442 mb)

2

T

File 1  (avi 177 mb)
File 2  (avi 105 mb)
File 3  (avi 100 mb)
File 4  (avi 144 mb)
File 5  (avi 383 mb)

3

T, V

File 1  (avi 717 mb)
File 2  (avi 266 mb)
File 3  (avi 103 mb)
File 4  (avi 169 mb)
File 5  (avi 122 mb)
File 6  (avi 80 mb)
File 7  (avi 827 mb)
File 8  (avi 61 mb)

4

T

File 1  (avi 1.3 gb)
File 2  (avi 1.0 gb)
File 3  (avi 403 mb)

5

T

File 1  (avi 422 mb)

6

T

File 1  (avi 181 mb)
File 2  (avi 333 mb)
File 3  (avi 96 mb)
File 4  (avi 323 mb)
File 5  (avi 37 mb)
File 6  (avi 366 mb)
File 7  (avi 300 mb)
File 8  (avi 505 mb)
File 9  (avi 23 mb)
File 10  (avi 130 mb)
File 11  (avi 337 mb)
File 12  (avi 472 mb)

7

U

File 1  (avi 172 mb)

8

V

File 1  (avi 184 mb)

9

V

File 1  (avi 184 mb)

10

W

File 1  (avi 359 mb)
File 2  (avi 276 mb)
File 3  (avi 358 mb)
File 4  (avi 310 mb)
File 5  (avi 1.8 gb)

11

W

File 1  (avi 629mb)
File 2  (avi 1.7 gb)
File 3  (avi 601 mb)
File 4  (avi 515 mb)

12

W

File 1  (avi 218 mb)
File 2  (avi 282 mb)
File 3  (avi 108 mb)
File 4  (avi 13 mb)
File 5  (avi 201 mb)
File 6  (avi 87 mb)

13

W

File 1  (avi 837 mb)
File 2  (avi 102 mb)
File 3  (avi 54 mb)
File 4  (avi 100 mb)
File 5  (avi 295 mb)

14

W

File 1  (avi 282 mb)
File 2  (avi 108 mb)
File 3  (avi 13 mb)
File 4  (avi 201 mb)
File 5  (avi 87 mb)
File 6  (avi 1.8 gb)

15

W

File 1  (avi 837 mb)
File 2  (avi 102 mb)
File 3  (avi 54 mb)
File 4  (avi 100 mb)
File 5  (avi 359 mb)
File 6  (avi 276 mb)
File 7  (avi 358 mb)
File 8  (avi 310 mb)
File 9  (avi 295 mb)
File 10  (avi 219 mb)

16

VSW, VNW

File 1  (avi 737 mb)
File 2  (avi 579 mb)

17

VSW, VNW

File 1  (avi 532 mb)

18

T, U, UNE, USE, V

File 1  (avi 362 mb)
File 2  (avi 159 mb)
File 3  (avi 18 mb)
File 4  (avi 20 mb)
File 5  (avi 54 mb)
File 6  (avi 17 mb)
File 7  (avi 34 mb)
File 8  (avi 16 mb)
File 9  (avi 13 mb)
File 10  (avi 16 mb)
File 11  (avi 22 mb)
File 12  (avi 7 mb)
File 13  (avi 9 mb)
File 14  (avi 21 mb)
File 15  (avi 387 mb)
File 16  (avi 169 mb)

19

T, U, RNE, RSE, UNE, V

File 1  (avi 674 mb)
File 2  (avi 740 mb)
File 3  (avi 730 mb)

20

V

File 1  (avi 113 mb)
File 2  (avi 741 mb)
File 3  (avi 745 mb)
File 4  (avi 745 mb)
File 5  (avi 240 mb)

21

VNE, VSE, V, VNW, VSW

File 1  (avi 6 mb)
File 2  (avi 19 mb)
File 3 (avi 24 mb)
File 4 (avi 17 mb)
File 5 (avi 27 mb)
File 6 (avi 13 mb)
File 8 (avi 9 mb)
File 9 (avi 7 mb)
File 10 (avi 4 mb)
File 11 (avi 12 mb)
File 12 (avi 4 mb)
File 13 (avi 3 mb)
File 14 (avi 15 mb)
File 15 (avi 15 mb)
File 16 (avi 9 mb)
File 17 (avi 16 mb)
File 18 (avi 8 mb)
File 19 (avi 10 mb)
File 20 (avi 4 mb)
File 21 (avi 31 mb)
File 22 (avi 11 mb)
File 23 (avi 22 mb)
File 24 (avi 6 mb)
File 25 (avi 11 mb)
File 26 (avi 6 mb)
File 27 (avi 15 mb)
File 28 (avi 6 mb)
File 29 (avi 5 mb)
File 30 (avi 4 mb)

22

W

File 1 (avi 27 mb)
File 2 (avi 30 mb)
File 3 (avi 37 mb)
File 4 (avi 2 mb)
File 5 (avi 27 mb)
File 6 (avi 21 mb)
File 7 (avi 10 mb)
File 8 (avi 20 mb)
File 9 (avi 34 mb)
File 10 (avi 26 mb)
File 11 (avi 21 mb)
File 12 (avi 24 mb)
File 13 (avi 12 mb)
File 14 (avi 27 mb)
File 15 (avi 22 mb)
File 16 (avi 18 mb)
File 17 (avi 11 mb)
File 18 (avi 7 mb)
File 19 (avi 15 mb)
File 20 (avi 27 mb)

23

T, U, V, W

File 1  (avi 1.0 gb)
File 2  (avi 382 mb)
File 3  (avi 210 mb)
File 4  (avi 464 mb)
File 5  (avi 410 mb)
File 6  (avi 49 mb)
File 7  (avi 205 mb)
File 8  (avi 67 mb)
File 9  (avi 386 mb)

24

T, U

File 1  (avi 58 mb)
File 2  (avi 145 mb)
File 3  (avi 62 mb)
File 4  (avi 33 mb)
File 5  (avi 35 mb)
File 6  (avi 37 mb)
File 7  (avi 26 mb)
File 8  (avi 39 mb)
File 9  (avi 58 mb)
File 10  (avi 25 mb)
File 11  (avi 142 mb)
File 12  (avi 30 mb)